Rock tumbler



FIG. 1 is a perspective view of a rock tumbler showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is another perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a perspective view of a component of the rock tumbler, shownseparately for ease of illustration;

FIG. 11 is another perspective view thereof;

FIG. 12 is another perspective view thereof;

FIG. 13 is a front elevational view thereof;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a left side elevational view thereof;

FIG. 16 is a right side elevational view thereof;

FIG. 17 is a top plan view thereof; and,

FIG. 18 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the rock tumblerthat form no part of the claimed design.

CLAIM The ornamental design for a rock tumbler, as shown and described.